ul {
    list-style: none;
    font-family: Arial, san-serif;
    font-size: 12px;
    padding: 0;
    background: black;
/*    border-bottom:3px solid #ff0000; */
}
.nav > li {
    float: left;
    position: relative;
}
.nav a {
    text-decoration: none;
    color: #888;
    display: block;
    padding: 10px 20px;
    background: #333;
}
.nav a:hover {
    background: #555;
}
.nav li > ul a {
    background: #444;
}
.nav li > ul {
    position: absolute;
    display: none;
    width: 100px;
    left: 0;
    top: 34px;
}
.nav li:hover > ul {
    display: block;
}